Weed whackers, line trimmers, strimmers, whipper snippers, string trimmers, whacker whipper weeder thingies…
It doesn’t matter what you call them, they won’t work without the string line.
Until someone invents a viable alternative, we’re stuck with (for the most part) using nylon plastic as a replacement line in our garden trimmers.
Alas, it is a necessary evil to keep our yards looking beautiful and our edges so sharp you could set a watch by them.
With that in mind, let’s see if you can pick the best string trimmer line from this…line up.
A buyer’s guide and FAQ section will follow as always.
Let’s get whacking!
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- Top 18 Best String Trimmer Lines of 2021
- Weed Warrior 17066 Trimmer Lines
- Ryobi One PLUS+ AC80RL3 Line
- Greenworks .065-Inch Single Line Spool
- WORX WA0010 Replacement Trimmer Line
- Arnold .065-Inch Commercial Trimmer Line
- Tanaka 746570 Trimmer Line
- Black and Decker AF-100-3ZP 0.065″ Line
- Cyclone .095-Inch Commercial Grade Line
- King Garden Universal Model Line Spool
- MaxPower .065” RoundCut Trimmer Line
- LoNoiz Commercial Grade Spiral Twist Line
- Oregon 22-895 Magnum Gatorline Square
- Maxpower Residential Grade Round .095” Line
- Husqvarna Titanium Force String Trimmer Line
- Anleolife Commercial Square .095” Line
- Rotary Vortex Trimmer .095” Line
- LoNoiz .130” Commercial Grade Line
- Cyclone .155” Commercial Trimmer Line
- How to Select the Best String Trimmer Line
- Why Does My Trimmer Line Keep Breaking?
- How Can I Improve The Life Of My String Trimmer Line?
- How Do I Tell What Trimmer Line Is Compatible With My Machine?
- What Is The Best Trimmer Line?
- How Do I Change My Trimmer Line?
- What’s The Best Trimmer Line Diameter To Use?
- Is Thicker Trimmer Line Better?
- Why Does The String Trimmer Line Come In Different Shapes?
- Is Trimmer Line Universal?
- How Does Trimmer Line Impact The Environment?
- Are There Any String Trimmer Alternatives?
Top 18 Best String Trimmer Lines of 2021
Weed Warrior 17066 Trimmer Lines
As a universal weed whacker line, this effort from Weed Warrior is for use with most cordless and corded electric trimmers. It’s been specially designed to last much longer than standard trimmer lines, and a third-party product can often be better than the actual official replacement part.
It’s very easy to use and offers 100 feet of line, so you’ll have more than enough to sort out your garden jungle this weekend.
- Excellent price.
- Long-lasting, durable line.
- Versatile fit.
- Dispenses well.
- Not suitable for heavy-duty jobs.
Ryobi One PLUS+ AC80RL3 Line
Designed for Ryobi cordless trimmers, this is a three-pack of spool-ready, .080-inch twisted line. It will fit 18V, 24V, and 40V models, and is a genuine Ryobi replacement part.
The twisted line will help tackle the toughest grass and weeds, while the spool design snaps easily into place on any compatible line trimmer. Each spool holds about 10 feet of line, which is an eye-popping luminous green to assist you with your clean up.
- Excellent value.
- Very durable.
- Highly rated.
- Only for use with Ryobi trimmers.
Greenworks .065-Inch Single Line Spool
Compatible with all Greenworks line trimmers, this .065 single line auto feed spool simply pops in or out of the tool for ease of use and to ensure you’re trimming your yard in no time at all. It will fit single line 24V and G-MAX 40V string trimmer models and is really good value for what you get in the pack.
Most suited to tackling easy-to-cut grass and weeds that give little push back – it’s not recommended for heavy-duty lawn care.
- Auto-feed spool.
- Genuine Greenworks part.
- Quiet operation.
- Tough and durable line.
- The line can stick together.
- The auto-feed isn’t the best.
- Greenworks trimmers only.
WORX WA0010 Replacement Trimmer Line
This six-pack of trimming line is excellent value for money as each spool offers 10 feet of line. Made for Worx trimming tools, they’re a single line, automatic feeding spool made from a copolymer nylon resin.
The line itself is pliable and flexible, designed to be more aerodynamic to reduce noise and line flutter. This will also offer less drag so you get a more efficient cut, while the stretch allows it to cushion on impact when it hits hard surfaces.
- Strong tensile strength.
- Great price.
- Double helix line.
- Easy to replace.
- Very highly rated.
- For Worx trimmer models, only.
- The cord is tightly wound.
Arnold .065-Inch Commercial Trimmer Line
Another universal trimmer line, this product from Arnold will fit most gas and electric trimmers. It contains approximately 11 refills and 220 feet of star-shaped line, with a cutting tool thrown in for good measure.
It’s designed as a commercial-grade trimmer line, which means it’s suitable for tougher weeds and grass, as well those heavier-duty jobs that need handling from time to time and claims to cut up to three times more area than other economy replacements.
- Versatile use.
- Excellent price.
- There are more durable lines available.
- The packaging is a bit problematic.
Tanaka 746570 Trimmer Line
This is another universal trimmer line that claims to have a commercial-grade standard, this time .095-Inches in diameter. It’s been designed to be up to 50% quieter than other trimmer lines, which is ideal if your machine is particularly noisy and you get regular glares from your neighbors.
The package contains approximately 230 feet of line, which will roughly give you around 11-12 spool refills and is more than enough to keep you going through the season.
- Quicky and easy to load.
- Good length.
- Versatile use.
- The donut packaging is manageable.
- Perhaps a little on the soft side for more powerful gas trimmers.
Black and Decker AF-100-3ZP 0.065″ Line
We return to the OEM gear now with this official Black & Decker three-pack replacement spool.
Designed to eliminate the time it takes to hand-wind a trimmer line, this device can fit just about any Black & Decker string trimmer. Each spool offers 30 feet of factory wound line and includes an automatic feed system so you’ll always have enough slack to do the job.
Of all the string trimmer lines I reviewed, this is easily the highest rated with a huge amount of quality feedback.
- Name to trust.
- Two and three-pack options available.
- Doesn’t tangle.
- Smooth operation.
- Only purchase from Amazon.com – the market is flooded with counterfeit products.
- Only for Black & Decker machines.
Cyclone .095-Inch Commercial Grade Line
This .095-inch line is a commercial grade trimmer line from Cyclone, manufactured in the patented six-bladed shape for additional cutting power and to ensure a longer life.
It’s regularly the choice of landscaping pros and contains 140 feet of durable line made from copolymer nylon and is well designed to meet the needs of the professional and homeowner alike.
- Highly rated.
- Strong construction.
- Easy to use.
- No-fuss packaging.
- Possibly prone to tangling.
- Splitting potential.
King Garden Universal Model Line Spool
Factory wound for a superior feed, this is a high-quality trimmer line that can be used in a variety of different trimmers.
This is 065-inches in diameter and comes with 30 feet of line in an auto-feed style spool that makes it easy to keep the slack coming and save time while you’re working.
It’s highly pliable and flexible, which allows for the line to stretch and cushion on impact with hard surfaces, while the aerodynamic shape offers less drag for more efficient cuts.
- Universal line.
- 8-pack of spools.
- Spool cap cover included.
- Excellent value for money.
- Attractive color.
- Polarizing results.
- Not as durable as it should be.
MaxPower .065” RoundCut Trimmer Line
If you’re looking to buy more in bulk then perhaps a large trimmer line spool is the way to go. This version from MaxPower offers you up to 90 refills of your machine, so it’ll keep you going for a fair while.
It’s a hefty 3 lbs spool of .065-inch line that is in the round-cut style for lighter weeds and grass. It’s made from durable nylon and offers excellent value for money at this price point.
- Ideal for most residential purposes.
- Universal line.
- Not as tough as it could be.
LoNoiz Commercial Grade Spiral Twist Line
LoNoiz by name and low noise by nature. This is a commercial-grade weed whacker line that offers a great 0.130-inch thickness in a spiral design that cuts better while keeping the din to a minimum.
Ideal if you’ve got tough grass to cut and you’re likely to get noise complaints when you do – this little spool will give you 150 feet of advanced line that is durable and long-lasting.
- Semi-professional line.
- Strong construction.
- Made by a commercial supplier.
- Ideal for heavy-duty jobs.
- Quite pricey for how much you get.
Oregon 22-895 Magnum Gatorline Square
This is a top-rated trimmer line from Oregon that regularly makes its way into the best trimmer line reviews.
It’s an excellent weight and thickness, coming in at .095-inches, which is often a good standard diameter for cutting line. It features a high-strength core in a square style that has a weld-resistant out layer to prevent melting.
Made from dual polymer, this is a professional trimmer line that won’t let you down.
- Heavy duty.
- Tough and durable.
- Limited compatibility – make sure you check to see if it fits your model.
Maxpower Residential Grade Round .095” Line
This MaxPower line offers you a little bit more punch with the .095-inch version. It’ll give you an excellent 42 refills in this 3 lbs spool, which is made from strong nylon components that should last you for many years with the right use.
It’s considered to be the best round trimmer line at this price and is compatible with many makes and models of string trimmers.
- Universal fit.
- Great price.
- Ideal for lighter jobs.
- Not as durable as other lines.
Husqvarna Titanium Force String Trimmer Line
Quite possibly the best trimmer line for heavy weeds, this titanium force string line from Husqvarna offers a lot of power, faster acceleration, and generally an all-round better performance than most other trimmer lines on the market.
This 3-lbs spool packs in 840 feet worth of line, and it’s designed to give better flight characteristics to keep you trimming on an even level.
The patented design on Husqvarna’s low-noise line reduces the noise level by up to 50% – so both you, your family and your neighbors will be happy if you’re using this excellent replacement trimmer string.
- Name to trust.
- Improved working environment.
- Perfect for trimming grass.
- Great value for the quality.
- Professional standard.
- Includes a free line cutter.
- The color isn’t ideal for cleanups.
Anleolife Commercial Square .095” Line
This is a professional, multi-sided trimmer line that’s been designed for commercial use. It’s made from a nylon 66 copolymer, engineered for improved durability and strength.
This 5 lbs spool contains 1280 feet of line, so it’s great value for money and ideal if you have a lot of land to cover, or you’re doing a job regularly.
A heavy-duty, reinforced core version is also available, which offers excellent flight characteristics and reduced noise – at a price.
- Professional results.
- Universal line.
- Line cutter included.
- The line cutter isn’t the best.
Rotary Vortex Trimmer .095” Line
With a diameter of .095 inches, this Vortex trimmer line is made from reinforced nylon in a spiral design for powerful cutting capabilities and low noise output.
Like the Anleolife version previous, at 5 lbs and 1140 feet of line, it is one of the longest trimmer spools on the market – which is ideal if you’re doing the job regularly.
It’s another highly-rated product, that many users claim is very long-lasting and durable – especially when compared to other brands. At this price and for this amount, I think it’s well worth a look.
- Great value for money.
- Extra-strong line.
- Quiet operation.
- Universal fit.
- It’s a lot of line leftover if it doesn’t work for your trimmer.
LoNoiz .130” Commercial Grade Line
As an extra option, I’ve included this heavy-duty LoNoiz line in the 3 lbs spool. This is the same commercial-grade product as before, only suited towards anyone who needs to purchase it in bulk.
It’s made in the patented twist-style, which increases efficiency and lowers noise pollution. The spool contains 455 feet of line and is another highly-rated string for use in a variety of trimmers.
- Value for money.
- Commercial quality.
- Not suitable for more lightweight trimmers/easy jobs.
Cyclone .155” Commercial Trimmer Line
For professional standard when it comes to lawn trimming line, look no further than this .155-inch product from Cyclone. Designed to be a commercial-grade line, it’s clearly targeted for use by the pro landscapers out there.
Featuring a patented six-bladed shape for extra cutting power, the copolymer nylon construction provides superior strength and durability. If you’re cutting a lot of thick weeds and grass and you happen to be doing it day-in and day-out, then this trimmer line is the choice for you.
- Excellent quality.
- Very tough.
- Highly recommended by pros.
- Universal fit.
- Ideal for high-wheel trimmers.
- One of the most expensive lines out there.
- Not suitable for lighter jobs or trimmers.
How to Select the Best String Trimmer Line
The market is flooded with replacement trimmer line options – but how do you know which one is right for your machine? Read on through our buyer’s guide to help you head in the right direction.
Types of Line
Trimmer lines don’t just come in one style or type – there are actually several different designs that you should be aware of before making your purchase.
Which one you choose depends on both which style is compatible with your trimmer, and the particular results you want to get out of it – or how tough the job actually is.
Round or Cylindrical Line
This is the least durable of all the lines. You’ll usually find this type comes with basic or entry-level trimmers or the cheaper corded tools.
These default lines are still the most popular as a result, and most people won’t switch them up for anything else.
More suited for lighter grass and weeded areas, it’s perfectly fine for most homeowners and casual users. It’s easy to change and is compatible with most trimmers on the market.
The rounded line is the most prone to welding together in hot environments.
This line will stand up to obstacles a little more than the rounded line. This is ideal if you have a slightly tougher groundcover to tackle.
The multiple sides can handle thicker undergrowth, while the surface of the line will distribute force and ensure it doesn’t break nearly as much.
Try it on tougher weeds, stronger grass, and even some roots – especially if you’re close to concrete or other hard obstacles.
Star or Triangular Line
This line might not have the same durability that a square line has, but it is much more aerodynamic.
This ensures that it can do the job faster and more efficiently. However, it is prone to breakage, so you need to decide the best option to trade-off.
The star-shaped line is also recommended for hotter weather – as it doesn’t weld together as much as a round or square line due to the reduced surface area.
Spiral or Twisted Line
This will be ideal if you’re looking to limit the noise level. It still very cuts well, but more often than not you’ll find noise-reducing trimmer lines are of the spiral design.
Vibrations are reduced too, so you get a strong, efficient cut and a more pleasant user experience.
You’ll find that many professionals use this type of trimmer line on their jobs.
Serrated or Bladed Line
This line is really only reserved for the toughest of weeds or grass. Or if you have a large amount of land to cover.
It’s designed to bite and cut through harder foliage, and with a little bit of extra power, you can make mincemeat of even the most stubborn section of your lawn.
It’s also probably the best string trimmer line for edging – if you want to use your machine for such a task.
In choosing the right type of line, take a reconnaissance mission around your yard and examine the kind of undergrowth and terrain you’re most likely going to be cutting back.
You can then make an educated guess as to which line you require – but sometimes the best way to find out is good old trial and error.
Before you even think about adding a product to the cart, first you must identify which replacement trimmer line is going to work with your machine.
If only every consumer just took a little bit of extra care in this department, stress and frustration would significantly decrease – as would the number of negative feedback.
It’s up to you to find out which spool fits your trimmer. Always refer to the manufacturer’s instructions before you place an order.
Remember – it doesn’t necessarily have to come from the OEM (original equipment manufacturer). In fact, many third-party trimmer line sources are much better than what your machine was supplied with.
Just make sure it fits. When in doubt, ask around, check the reviews and see if anyone else has your model.
It’ll save you a lot of headaches in the future.
Trimmer line comes in different lengths, and if you’re purchasing it pre-spooled there will be a set length on each spool.
Buying line in bulk on a larger spool is useful for getting exactly the right length of line you need, but it is much more effort to manually replace on your trimmer.
While lots of lines might look attractive, and big spools at cheaper prices can be tempting – ask yourself how good the line actually is.
If it’s poor quality, it’s not going to be that cost-effective when you’re having to replace it twice as much as a better quality product that comes in a shorter length.
You will notice that a string trimmer line comes in a variety of different diameters, and much like the line length, it also plays a significant part in the smooth operation of your trimmer and the type of job you’re using it for.
It’s not rocket science here – the tougher the undergrowth, grass, groundcover or weeds that you’re cutting – the thicker the line has to be.
You’ll find that strimmer line is available in three different diameter ranges- detailed as follows:
- 0.60-0.80 inches for cutting smaller weeds and light grass cover around a residential household.
- 0.85-0.110 inches for cutting medium/thicker weeds and foliage.
- 0.110 inches + for heavy-duty jobs, the toughest weeds, large areas, and commercial landscaping.
Remember that not all string trimmers are compatible with all diameters of line. Refer to the manufacturer’s instructions before you purchase a product that doesn’t fit.
For the most part and as a rule of thumb, household tools such as lightweight corded electric trimmers will only take up to 0.80 inches of thickness, while commercial-grade equipment will be compatible with anything over 0.110.
The happy medium seems to be 0.095 – which is why many people search for the best .095 string trimmer line available. For most trimming work around the home, this is a solid go-to option and is usually all you’ll need.
String trimmer line is most commonly made from plastic. It’s relatively cheap and readily available, but it is prone to breakages.
Many regular gardeners and landscape professionals have experienced a common issue of it melting in hot weather. (See below for tips to combat this).
One way to avoid that is obviously to try a different material. Nylon polymers are a slightly better option, as some lines might be reinforced internally to make it more durable.
It’s also available in aluminum versions. Such material is obviously a lot more expensive, but they’ll also last longer, are more fuel-efficient, and offer improved cutting performance that can save you money in the long run.
Why Does My Trimmer Line Keep Breaking?
This could be down to a number of factors that are preventing you from enjoying a smooth cutting experience.
The most common reasons include cutting too fast, and not using the right type of line for the thickness of the weeds and grass.
Cutting against hard surfaces like fence posts, concrete walkways, or stones and rocks will also snap your trimmer line in a heartbeat.
Ease off the throttle – it doesn’t have to be spinning at full pelt to get the job done in most cases.
At the same time, don’t jump right into the undergrowth with the trimmer head – you’re aiming to use the very tip of the line, so gently introduce from the side into the area you’re looking to cut.
If you are coming up against obstacles, again, ease the trimmer into the area. Remember that breakages are going to be inevitable.
Another consideration is that your line is too old and has become brittle. If that’s the case then you need to replace it.
How Can I Improve The Life Of My String Trimmer Line?
There are a number of tips and tricks you can use to ensure your string lasts longer and is more cost-effective as a result.
Perhaps the most important is that you use the trimmer correctly. Any misuse of this tool is likely to bring all kinds of problems, including damage to your machine, your yard, the string line and even yourself.
Keep the trimmer level and cut the grass from top to bottom – shaving it down a little at a time. Never just go straight in.
Try to avoid running the line at full throttle – for the most part, you won’t need full power and you’ll only shorten the life of the line.
Make sure you’re using the correct spool and line size. You’ll go through the line much faster if the type isn’t suited to the job you’re doing.
Professional tip – always soak your trimmer line for 24 hours before use. The line will become less brittle, it will improve the cut and at the same time, the trick is very useful for preventing deterioration from heat.
And speaking of heat – never leave your line in a hot place or in direct sunlight. Store your line in a cool, dark place and it will last much longer.
How Do I Tell What Trimmer Line Is Compatible With My Machine?
The easiest way is to refer to the manufacturer’s instructions. That should tell you exactly the kind of line your trimmer is compatible with.
If for some reason it doesn’t, or if you’ve misplaced the instructions, then you should be able to find the answer online. Check to see what lines other owners of your machine are using.
For extra peace of mind – consider contacting the makers of the line to confirm if it will fit your trimmer model.
What Is The Best Trimmer Line?
It depends entirely on the job you’re doing, the trimmer you’re using and how dense or thick the groundcover you need to cut actually is.
Luckily, you’ve come to the right place to find out. Check the reviews to see which line gets the best praise.
Refer back to the types of line – and their diameters – to find out which one best suits the job you need to do.
In this game, though, there really is no substitute for trial and error. You might have to give a few options a go before you settle on the best trimmer line for you.
How Do I Change My Trimmer Line?
How you change your trimmer line will depend on the type of trimmer head your model features, but for the most part, they’re all pretty much the same.
Again, the manufacturer’s instructions should tell you exactly how to do this job for that particular trimmer.
For a more visual reference, refer to the short but very clear and informative video below for an excellent guide to re-stringing your trimmer.
What’s The Best Trimmer Line Diameter To Use?
It depends on the type of job you’re doing – but simply use a thicker line for thicker undergrowth, weeds, and grass.
Likewise, if you’re undertaking a lengthy job, such as a large yard, estate, roadside edges, or even golf courses, for example, you’ll need a much thicker and more heavy-duty line.
For most residential use, a good 0.095 diameter is commonly the best suggestion. But thinner lines will work just as well for light coverage.
Is Thicker Trimmer Line Better?
Again, it depends on the job.
In many cases – yes it is. It will cut down tougher weeds and grass while lasting longer with more durability.
However, it’s usually more expensive and might not actually be compatible with your trimmer.
Why Does The String Trimmer Line Come In Different Shapes?
Each line shape offers a different performance when it comes to cutting.
This can range from having the ability to cut thicker foliage, being more fuel-efficient, decreasing the likelihood of it welding or melting, and even reducing the noise levels of the trimmer.
Refer to the line shape guide above for more detailed information
Is Trimmer Line Universal?
Certain types of trimmer line can be used in many different makes and models of trimmer.
Where a line is made by the OEM (Official Equipment Manufacturer), it’s likely that it will only support tools made under that particular brand.
All manufacturers will try to convince you to use their own, branded-line, often claiming that the machine won’t work unless you use official parts and replacements for it.
However, this is far from the truth, and many third party lines are far superior to use as a new string trimmer line.
If you’re in any doubt – don’t be afraid to ask around, or leave me a comment and I’ll do my best to get back to you. The internet is your friend.
How Does Trimmer Line Impact The Environment?
A very good question and something that people are becoming more aware of in this day and age.
Trimmer line breaks easily and regularly as you cut through your garden weeds, grass, and other such groundcovers. As a result, you’re constantly spewing tiny pieces of plastic all over your yard.
While this might seem harmless – it actually isn’t. It is easily transported into watercourses and often ends up in the oceans as microplastics.
With an estimated 90 million line trimmers in operation around the world – both commercial and residential – that’s a lot of plastic waste that can get eaten by wildlife and damage the ecosystem.
To combat this, you need to try and limit how much line you’re using and how often you’re using it.
Buy the most durable line you can, don’t use too much power, take care around hard obstacles, and always clean up after yourself where possible.
This is where brightly colored and luminous line is a real advantage – it’s much easier to see if you’re being diligent about practicing good cleanup.
Are There Any String Trimmer Alternatives?
Biodegradable string lines are on the market, but at the moment they simply don’t offer comparable performance and are just not as durable or long-lasting as other lines.
Chain trimmers and steel blades are available (although they’ve been banned in the EU). They’re usually only used for very heavy-duty commercial jobs and are far too much for most residential work.
The only real alternative is an old-school, manual, long-handle grass shears.
They have come a long way since the rusty pair your grandfather had in his shed – so consider that option – especially if you have a smaller or more manageable yard.
Wow. String trimmer line. Who would have thought it was such a complex world?!
I hope you’ve learned as much as I did in researching this article and you’ve found the best string trimmer line for your needs.
If it were up to me (and I had a compatible trimmer) I’d opt for one of the Cyclone line products. I’ve heard from a variety of landscaping pros that they make the best string line for trimmers out there.
Do you agree? Let me know which product you would choose and why.